Add additional ViewResolver configuration

The DispatcherServlet adds a default InternalViewResolver
which was used by some apps, but when the actuator was
available it added an "/error" bean and effectively
switched off the default view resolver. The net fix was
to add an InternalViewResolver at the same time as
adding any other ViewResolvers.

[Fixes #55357516] [bs-290] Actuator UI app cannot serve static index.html

spring-boot-samples/spring-boot-sample-web-static/pom.xml

@@ -19,6 +19,11 @@
 			<artifactId>spring-boot-starter-web</artifactId>
 			<version>${project.version}</version>
 		</dependency>
+		<dependency>
+			<groupId>${project.groupId}</groupId>
+			<artifactId>spring-boot-starter-actuator</artifactId>
+			<version>${project.version}</version>
+		</dependency>
 		<dependency>
 			<groupId>${project.groupId}</groupId>
 			<artifactId>spring-boot-starter-tomcat</artifactId>